Users Guide

Dell PowerConnect 55xx Systems User Guide 31
DHCP Server
Dynamic Host Configuration Protocol (DHCP) provides a means of passing
configuration information (including the IP address of a TFTP server and a
configuration file name) to hosts on a TCP/IP network. The switch can serve
as a DHCP server or client.
For more information on the device serving as a DHCP server, see "DHCP
Server" on page 290.
For more information on the device serving as a DHCP client, see "DHCP
IPv4 Interface" on page 207.
Protected Ports
The Protected Ports feature provides Layer 2 isolation between interfaces
(Ethernet ports and LAGs) that share the same Broadcast domain (VLAN)
with other interfaces.
For more information, see "Protected Ports" on page 388.
iSCSI Optimization
iSCSI optimization provides the iSCSI flows with specific priority over other
network traffic. In addition, the feature provides monitoring of iSCSI
sessions.
For more information, see "iSCSI Optimization" on page 584.
Proprietary Protocol Filtering
This feature enables user control over the filtering of packets with proprietary
protocols such as CDP, VTP, DTP, UDLD, PaGP, and SSTP. The user can
select any combination of the protocols to be filtered, for example: CDP and
VTP and UDLD.
For more information, see "Network Security" on page 92.
DHCP Relay and Option 82
A DHCP relay agent detects DHCP Broadcasts from DHCP clients and relays
them to DHCP servers that may reside on different subnets.